Heat Pump in San Francisco Bay Area

We have been handling tricky home comfort issues across the Bay Area since 1961. We know the unique demands these microclimates place on your equipment, from the damp, foggy mornings near the coast to the baking afternoon heat further inland. Because heat pumps handle both heating and cooling, they do not get an off-season. Whether you live in a drafty historic Victorian or a tightly sealed modern build, our team knows exactly how to restore the reliable comfort you expect.

When a standard furnace breaks, you at least have air conditioning in the summer, but when a heat pump fails, you lose your home's entire climate control system in one fell swoop. You need a team that understands the specific mechanics of reversing valves, defrost cycles, and dual-mode compressors. We arrive with fully stocked trucks and the technical authority to solve the problem the right way, the first time.

Heat Pump Repair & Service

When your heat pump starts failing, the symptoms usually show up fast and severely impact your daily comfort.

We often get calls from homeowners dealing with a unit that short-cycles, a compressor that refuses to kick on, or a system that runs constantly without ever reaching the set temperature. In the Bay Area, a struggling heat pump means you are losing both your primary heating and cooling capabilities at the exact same time. These are complex machines, and ignoring a minor symptom almost always leads to a major breakdown.

Common Warning Signs

• Ice building up on the outdoor coil that does not melt during a normal defrost cycle
• Strange gurgling, hissing, or bubbling noises indicating a low refrigerant charge
• A system stuck blowing cold air in the winter due to a jammed reversing valve
• Grinding or screeching sounds coming from failing blower motors or fan blades
• Sudden, unexplained spikes in your monthly utility bills despite normal usage

How We Diagnose the Problem

Our diagnostic process is completely thorough and rooted in decades of hands-on experience. We check system pressures, test electrical connections, inspect the integrity of your compressor, and verify the operation of the defrost control board. Catching a failing run capacitor or a dirty evaporator coil early can save you from a massive, catastrophic compressor failure down the line. We do not just guess at the problem; we use advanced tools to pinpoint the exact point of failure.

During cold Bay Area mornings, your outdoor unit naturally accumulates frost, and the defrost control board is supposed to temporarily switch the system to cooling mode to melt that ice. When that board fails, the unit turns into a block of solid ice, suffocating the airflow and forcing the compressor to run itself to death. We test these specific sequences to ensure your system is operating exactly as the manufacturer intended.

If the damage is too severe or the compressor is completely burned out, we will walk you through the reality of the situation and might recommend shifting gears to Heat Pump Installation & Replacement instead. But if your current equipment can be fixed reliably and economically, we will fix it. We provide upfront, job-based pricing so you know exactly what the repair will cost before we ever pick up a wrench.

Whether you need a quick sensor swap or a major component fix, our Heat Pump Repair & Service team handles every call across the Bay Area.

Heat Pump Installation & Replacement

Continually pouring money into an aging, inefficient unit will eventually cost you far more than upgrading to modern equipment.

If your system is over a decade old, relies on outdated and expensive R-22 refrigerant, or simply cannot keep up with the square footage of your home, repairs become incredibly hard to justify. We see older units struggling to keep up with the demands of Bay Area homes every single day, resulting in massive utility bills and poor indoor comfort. Modern heat pumps offer drastically better efficiency ratings, quieter operation, and superior climate control.

When to Stop Repairing and Start Replacing

• Frequent breakdowns that require constant Heat Pump Repair & Service visits
• Major component failures, such as a dead compressor or severe, unrepairable coil leaks
• Energy bills that keep climbing month after month despite regular filter changes
• Uneven temperatures across different rooms, leaving some freezing and others sweltering
• The system is more than 10 to 15 years old and struggling to maintain adequate airflow

Our Installation Process

We never just swap out a box and hope for the best. Our installation process begins with a strict load calculation to match the new equipment to your home's exact thermal characteristics, factoring in your windows, insulation, and layout. An oversized unit will short-cycle and fail prematurely, while an undersized unit will run constantly and drive up your bills. We ensure the sizing is absolutely perfect for your specific property.

Even the most advanced, high-efficiency heat pump will perform terribly if it is connected to leaky, undersized, or damaged ductwork. During our installation process, we evaluate your entire air distribution system to ensure it can handle the new equipment. If your ducts are collapsing or leaking conditioned air into your attic, we address that so your new investment actually delivers the comfort you are paying for.

Our team handles the entire process with meticulous care, from safely removing and disposing of the old equipment to properly brazing and charging the new refrigerant lines. We test the airflow, calibrate the thermostat, and ensure the condensate drainage is routed perfectly. We leave your home cleaner than we found it, ensuring your new system operates at peak performance from day one.

Explore our complete Heat Pump Installation & Replacement coverage to see how we approach planned upgrades.

The Certainty of 1961 Standards in a Modern World

At Cabrillo Plumbing, Heating & Air, we approach every service call with a commitment to transparency, heritage expertise, and total accountability. We know that dealing with failing HVAC equipment is incredibly stressful, which is why we eliminate the anxiety of watching the clock. We use job-based pricing, meaning the price we quote upfront is the exact price you pay, no matter how long the repair or installation takes.

Our technicians are hired for character and trained for exceptional skill. When we arrive at your home, we show up in fully stocked trucks, ready to accurately diagnose the root cause of your problem rather than just patching the surface symptom. We understand the unique architectural challenges of the Bay Area, from tight crawlspaces in older homes to complex ductwork in modern renovations.

We back all of our work with The Cabrillo Guarantee. If something is not right, we make it right, period. We do not believe in high-pressure sales tactics or cutting corners, because we are here to provide the service you expect, quality you deserve.

Related Services

A heat pump is a massive part of your home's overall climate control, but it is often tied into a larger network of comfort systems. If your home has specific zone control needs, recent room additions, or spaces where traditional ductwork just is not feasible, you might want to look into our Ductless systems for highly targeted, efficient comfort.

Alternatively, if you are relying on a traditional split system setup rather than a unified heat pump, we also handle dedicated Air Conditioning and Heating services. No matter what equipment keeps your Bay Area home comfortable, our seasoned technicians have the expertise to maintain, repair, and replace it.

Stop Struggling With Inconsistent Home Comfort

You should not have to put up with a loud, inefficient, or failing heat pump that leaves you shivering in the winter and sweating in the summer. Let our experienced technicians accurately diagnose your equipment and provide a lasting, reliable solution.

Reach out today to schedule your service visit and get your home's comfort back to normal.